Fitting and coupling element fob lubricating devices



R. E. MUDD March 8, 1932.

FITTING AND COUPLING ELEMENT FOR LUBRICATING DEVICES Filed Dec. 2, 1929RoZ/a .5 Nude INVENTOR Wu ATTORN EY$ 35 Figure 6 is a sectional Viewtaken along the a sliding fit between the sleeve and the cylin- PatentedMar. 8, 1932 i UNITED STATES PATENT OFFICE ROLLA E. MUDD, OF CHICAGO,ILLINOIS FITTING AND COUPLING ELEMENT FOR LUBRIGATING DEVICESApplication filed December 2, 1929. Serial No. 411,144.

My invention relates to improvements in snugly against its seat. Thefitting is profitting and coupling elements for lubricating vided with arecess 10 and a tapered end 11. devices, and it consists in thecombinations, In Figure 2 I have shown the coupling eleconstructions,and arrangements herein dement 12 in section. The coupling elementscribed and claimed. 4 comprises a cylindrical member 13 havin a 55 Anobject of my invention is to provide a ridge'or constricted portion 14against which fitting and coupling element for lubricatin a ring 15 isarranged to hear. The cylindridevices in which novel means is rovidedcal member is provided with a plurality of whereby the necessaryconnections fgr lubriopenings 16 within which s herical members 10cating purposes may be easily and quickly or balls 17 are disposed.askets 18 and 19 5 made. are disposed within the cylindrical member Afurther object is to provide a device of and are provided with centralopenings 20 the type described in which novel means is and 21,respectively. A washer 22 may be provided whereby a rigid and positiveconassociated with each of the gaskets. The

15 nection may be made and in which the numgasket 18 is held inengagement with the ring 05 ber of moving parts has been reduced to a 15by means of a compression spring 23. The minimum. ends of thecompression spring bear against Other objects and advantages will appearthe washers 22. The cylindrical member 13 in the followingspecification, and the novel is provided with a threaded portion 24 upon20 features of the invention will be particularly which the threadedportion of a union 25 is 7 pointed out in the appended claims. Idisposed. The union is provided with an My invention is illustrated inthe accomenlarged portion whereby a shoulder 26 is panying drawingsforming part of this apattained. The reduced portion is providedplication, in which with a threaded bore 27 within which the 25 Figure 1is an elevation of a construction threaded portion of a hose nipple,indicated embodying my invention, generally at 28, may be disposed. Thenipple Figure 2is an enlarged sectional view taken is associated with ahose, which,'in turn, is

along the line 2--2 of Figure 1, associated with a compressor.

Figure 3 is an enlarged sectional detail In Figure 2 I have shown asleeve 29 as 30 view of a portion of my device, being mounted upon thecylindrical mem- Figure 4 is a sectional view taken along ber 13 and theunion 25. The sleeve is prothe line 4-4 of Figure 2, vided with anopening 30 slightly smaller in Figure 5 is a sectional view taken alongdiameter than an opening 31 in the opposite the line 5-5 of Figure 2,and end of the sleeve. The opening 30 provides line 66 of Figure 2.drical member 13. The sleeve is threaded as at In carrying out myinvention, I make use 32 for receiving a gripping member 33. The of aportion of a bearing 1 having an openlatter is provided with a flange 34arranged ing 2 therein. A fitting 3 is provided with a to engage theshoulder 26 when the sleeve is 40 threaded portion 4 which is disposedwithin moved from the position shown in Figure 2 the threaded opening 2.The fitting is proto that shown in Figure 3. The distance vided with ashoulder 5 whereby the fitting which the sleeve may move is determinedby may be screwed tightly into place. Referring the shoulder 35 and theflange 34, see Figures particularly to Figure 2, I have shown the 2 and3. It will be noted in referring to Fig- 4 coupling as being providedwith a central ure 2 that the gasket 19 bears against the bore 6 withinwhich a compression sprin 7 union. The union is provided with an openispositioned. One end of the spring is ising 36 arranged in alignment withthe openposed upon a pointed portion of a wedge 8. ing 21.

The opposite end of the spring bears against From the foregoingdescription of the 50 aball valve 9 for yieldingly holding the ballvarious parts of the device, the operation thereof may be readilyunderstood. Normally, the compression spring 23 holds the gasket I 18 inthe position shown in Figure 2. At this when it is desired to connectthe coupling with the fitting, the coupling is disposed on a thefitting. At this time the tapered end 11 will be received within theopening 38 in the cylindrical member 13. The opening is slightlytapered. .The end of the fitting will engage the gasket 18 and the ring15. These will be moved from the positions shown in Figure 2 to thoseshown in Figure 3 when the coupling is moved into position upon thefitting.

At this time the openings 16 are aligned with respect to the recess 10,whereby the sleeve 29 in being moved positively moves the balls 17 intothe recess 10 and holds the balls therein. Thus it will be seen that thecoupling element will be efiectively looked upon the fitting 3. At thistime a lubricating medium may be forced into the bearing 1 from alubricating gun or compressor associated with the hose. The wedge 8provides a minimum displacement. The sleeve 29 provides means wherebythe balls are easily moved and effectively held within the recess orgroove 10.

' The gripping portion 33 permits the sleeve to be easily moved. Merelymoving the sleeve from the position shown in Figure 3 to that shown inFigure 2 will permit the coupling to be immediately detached from thefitting.

, Immediately upon detaching the coupling from the fitting, thecompression spring 23 moves the gasket 18 and the ring 15, whereby thebells 17 are arranged in their expande 1 positions. I claim: 1. In alubricating device, the combination with a nipple having an openingthere-.

through and provided with a peripheral recess in the outer surfacethereof, of a hollow coupling member provided with a plurality ofradially disposed openings, bal s movably disposed in said openings, aring member slidably disposed within said coupling and normallypositioned in engagement with the balls whereby said balls may beretained in extreme radial positions, said nipple being insertable intothe coupling member and adapted for engaging said ring member wherebythe ring member may be moved out of engagement with the balls. and theflange portions, and a collar slidably mounted on the coupling memberand adapted for engag ing the balls whereby said balls may be extendedinto the peripheral recess of said nipple and held in their extendedpositions.

2. In a lubricating device, the combination with a nipple having anopening therethrough and provided with a peripheral recess in the outersurface thereof, of a hollow coupling member provided with a pluralityof radially disposed openings, balls movably disposed in said 0 enin s,said cou ling member being provi ed wlth internal ange portionsextending between the openings, a ring member slidably disposed withinsaid coupling and normally positioned in engagement with the flangeportions and balls whereby said balls may be retained in extreme radialpositions, said nipple being insertable into the coupling member andadapted for engaging said ring member whereby the ring member may bemoved out of engagement with the balls and the flange portions, and acollar slidably mounted on the coupling member and adapted for engagingthe balls whereby said balls may be extended into the peripheral recessof said nipple and held.in their extended positions.

3. In a lubricating device, the combination with a nipple having anopening therethrough and provided with a peripheral recess in the outersurface thereof, of a hollow coupling member provided with a pluralityof radially disposed openings, balls movably disposed in said openings,a ring member slidably disposed within said coupling and normallypositioned in engagement'with the \balls whereby said balls may beretained in extreme radial positions, said nipple being insertable intothe coupling member and adapted for engaging said ring member wherebythe ring member may be moved out of engagement with the balls and theflange portions, and a collar slidably mounted on the coupling memberand adapted for engaging the balls whereby said balls may be extendedinto the peripheral recess of said nipple and held in their extendedpositions, said collar being normally positioned out of engagement withsaid balls.

I 4. In a lubricating device, the combination with a nipple having anopening therethrough and provided with a peripheral recess in the outersurface thereof, of a hollow coupling member provided with a pluralityof radially disposed openings. balls movably disposed in said openings,said coupling member being provided with internal flange portionsextending between the openings, a ring member slidably disposed withinsaid coupling and normally positioned in engagement with the flangeportions and balls the ring member may be moved out of engagement withthe balls and the flange portions, and a collar slidably mounted on thecoupling member and adapted for engaging the balls whereby said ballsmay be extended into the peripheral recess of said nipple and held intheir extended positions, said collar being normally positioned out ofengage ment with said balls.

5. In a lubricating device, the combination with a nipple having anopening therethrough and provided with a peripheral recess in the out-ersurface thereof, of a hollow coupling member provided with a pluralityof radially disposed openings, balls movably disposed in said openings,a ring member slidably disposed within said coupling and normallypositioned in engagement with the balls whereby said balls may beretained in extreme radial positions, a gasket slidably disposed withinsaid coupling member and in continuous engagement with said ring member,spring means associated with the gasket for operatively positioning saidgasket and ring member, said nipple being insertable into the couplingmember and adapted for engaging said ring member whereby the ring membermay be moved out of engagement with the balls and the flange portions,and a collar slidably mounted on the coupling member and adapted forengaging the balls whereby said balls may be extended into theperipheral recess of said nipple and held in. their extended positions.

6. In a lubricating device, the combination with a nipple having anopening there? through and provided with a peripheral recess in theouter surface thereof, of a hollow coupling member provided with aplurality of radially disposed openings, balls movably disposed in saidopenings, said coupling member being provided with internal flangeportions extending between the openings, 'a ring member slidablydisposed within said coupling and normally positioned in engagement withthe flange portions and balls whereby said balls may be retained inextreme radial positions, a gasket slidably disposed within saidcoupling member and in continuous engagement with said ring member,spring means associated with the gasket for operatively positioning saidgasket and ring member, said nipple being insertable into the couplingmember and adapted for engaging said ring member whereby the ring membermay be moved out of engagement with the balls and the flange portions,and a collar s] id ably mounted on the coupling memher and adapted forengaging the balls whereby said balls may be extended into theperipheral recess of said nipple and held in their extended positions.

7. In a lubricating device, the combination with a nipple having anopening there- 'through and provided with a peripheral recess in theouter surface thereof, of a hollow coupling member provided with aplurality disposed in said openings, a ring member slidably disposedwithin said coupling and normally positioned in engagement with theballs whereby said balls may be retained in extreme radial positions, agasket slidably disposed within said coupling member and in continuousengagement with said ring member, spring means associated with thegasket for operatively positioning said gasket and ring member, saidnipple. being insertable into the coupling member and adapted forengaging said ring member whereby the ring member may be moved out ofengagement with the balls and the flange portions, and a collar slidablymounted on the coupling member and adapted for engaging the ballswhereby said balls may be ex tended into the peripheral recess of saidnipple and held in their extended positions, said collar being normallypositioned out of engagement' with said balls.

8. 1m a lubricating device, the combination with a nipple having anopening therethrough and provided with a peripheral recess in the outersurface thereof, of a hollow coupling member provided with a pluralityof radially disposed openings, balls movably disposed in said openings,said coupling member being provided with internal flange portionsextending between the openings, a ring member slidably disposed withinsaid coupling and normally positioned in engagement with the flangeportions and balls whereby said balls may be retained in extreme radialpositions, a gasket slidably disposed within said coupling member and incontinuous engagement with said ring member, spring means associatedwith the gasket for operatively positioning said gasket and ring member,said nipple being insertable into the coupling member and adapted forengaging said ring member whereby the ring member may be moved out ofengagement with the balls and the flange portions, and a collar slidablymounted on the coupling member and adapted for engaging the ballswhereby said balls may be extended into the peripheral recess of saidnipple and held in their extended positions, said collar being normallypositioned out of engagement with said balls.

Signed at Chicago, in the county of Cook and State of Illinois, this27th day of November, A. D. 1929.

ROLLA E. MUDD.

